Finding the Fourth Proportional to 756,056.70, 1,135,774.65 and 631,640.70
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Solution
The fourth proportional to 756,056.70, 1,135,774.65 and 631,640.70 is: 948,872.61
Step by Step Solution
- Step 1: Write the proportion equation
756,056.70 : 1,135,774.65 = 631,640.70 : x - Step 2: Convert to fraction form
756,056.70/1,135,774.65 = 631,640.70/x - Step 3: Cross multiply
756,056.70x = 1,135,774.65 × 631,640.70 - Step 4: Simplify right side
756,056.70x = 717,401,494,968.26 - Step 5: Solve for x
x = 717,401,494,968.26/756,056.70 - Step 6: Final answer
x = 948,872.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.